Knitting-machine needle.



L. N. D. WILLIAMS.

KNITTING MACHINE NEEDLE.

APPLIGATIoN FILED Dna 1s, 1911.

1,1 14,420, Patented Oct. 20, 1914 UNirnD saigne; raga OFFICE.

LOUIS N. D. WILLIAMS, OF OGONTZ, PENNSYLVANIA, ASSIGNOB TO SCOTT t WILLIAMS,

INCORPORATED, CAMDEN,

NEVI JERSEY, A CORPORATION OF NEW JERSEY.

KNITTING-MACHINE NEEDLE.

Specification of Letters Patent.

Patented oct. 2o, 1914i..

Application filed December '18, 1911. Serial No. 666,582.

To all whom it may concern vBe it'knoivn that L'Loms N. D. WVILLIAMS, a citizen of the United States, residing'in Ogontz, Mont omery county, Pennsylvania, have invente certain Improvementsl in Knitting-Machine Needles, of which the following is a specification.

My"inventionrelates to swinging needlesv of the type employed in knitting machines such as that shown infthefpatent 'of Robert W. Scott, No,834,763 dated October 80, 1906, the object of m invention being to provide the sivin inggs'hankfof the needle with a ivob-mem er Which will be securely confine to said shanlg'and Will bear an accurate relation to the hookedV and latched needle stem at one end of the shank as well as to the opposite endo the shank which is actedupon by the needle actuating cams. This object I attain in the manner hereinafter setffo'rth, reference being had to the accompanying drawings, in Whichy Figures 1 and El are si de views vrepresenting needles having. pivot members constructedin accordance With'my invention;

YFig. 3 is an enlarged side vi'ew of the pivotportion of the needle shown in Fig. l, illus` trating the first step in the production of the same; Fig. 4. is a transverse section of the same'on the line a-a, Fig. o; Fig.4 5 is a sectio'n'similar to Fig. 4 but illustrating the method of completing the pivot member; Fig.. 6 is a side view on un enlarged scale of the'ipivot portion of the needle shown inl Fig. 2, illustrating the first step in the production of the same; Fig. 7 is a transverse section of .the same on the line b-b, Fig. 6;

AIl" ig. 8 is a sectional view illustrating the method of completing said pivot member; Fig. 9 is a sectional view illustrating modified form of pivot member, and Fig'. 10 is'a 'if'iew'oftlie jig in which the needle is held during the completion of thepivot member.

in Fig. 1 of the drawing, 1 represents shank of the vneedle having at one end' hooked and hitched needle stein and h ing the other end, which is acted upon by the needle operating cams, bent as at 3. al- Adough this is not absolutelynecessary. rShe pivot member of the needle shown in Fig. lconsists of a cupped washer 4- across the cupped face of which is laid tlie needle shank 1, the flange 5 of the washer being notched or recessed, as at 6, for the reception of said shank, and beingalso, bypreference, provided With other notches, as at 7, the notches being preferably undercut or having theirsides flared laterally froml thev rim to the base of the flange. The washer also has, by preference, an opening 8 therein, this opening being crossed by the shank of the needle, as shown in Fig. 3. The pivot member is completed bya casting 9 of relatively soft and freely flowing metal7 which 65 fills the cup of the washer, and also the notchesor recesses 6 and 7 in the flange of the' washer and'q'the opening 8 in vthe body of the same, whereby the casting is firmly locked to the Washer. The needle shankiis also firmly locked to the casting,- longitudi-- l nal movement of the shank in respect to the casting being prevented by engagement of the latter with notches 10,in-th'el front and bacli'of the shank, or other suitable means. 75 In order to form 1*.lie'casti'i`1` 9 the cupped washer, with the needle s an'li in place therein, is continedltweenthe parts-11 l,and 12 of a divided moldsuch as shown in Fig.

, which mold forms part :of a jig',l having 80 pins 13 "or other suitable means' foraccuvrately positioning the ends' of the needle in respect to the mold7 as shown in Fig. 10.

The metal is forced under pressure into the matrix of the mold in a manner similar to that adopted in casting type, the gate 14 being afterward removedi from the casting.

1The pivot member of the needle shown in, Fig. consists of a. flat 'annular or ring washer 15 having two parts, each of which 90 v has oil'sets il", the shank 1 being clamped between these offset portions of the washer and the member being completed by the cast ing 1S which fills the central opening of the' washer. envelops tht portion of the'needio 9F!l slianli ".rhic'i aid opening and also overlaps the f ai each side. as hewn i Tg. rg (poration bein' *iv the 1min) manner as in pr dependent oi" the washii' as ei'ectiveiy as in the construction shown in .l to il. and

:is the pivot member is formed upon each i'ieedle shank while the latter is rigidly heldj in a suitable jig, the pivotl nnrmbers of all the needles must necessarily be uniform and bear an accurate relation to the hooked and hitched stem of the needle. The pivot memner shown in Fig. 9, is similar to that shown in Fig. 8, except that it has a single washer 19 instead of the two-part Washer l5.

The washers may he constructed of steel, so that the flange 5 of the washer-1 or the peripheral portion of the washer or 19 will constitute a proper bearing for the pivot member of the needles in that part of the machine which carries the saine.

In the production of the casting which envelops the needle a metallic alloy might be used which would be hard enough to constitnte :1. bearing surface for the pivot member, in which case the washer might be dispensed with, but the use of the latter is to be preferred.

I claim:

1. A knitting machine needle having a4 pivot memher with a casting,r which engages and retains the shank of the needle,. the latter projecting in both directions from the periphery of the casting.

2. X knitting machine needle haring a pivot member comprising a. washer, and a casting engaging said washer and engaging and retaining` the shank of the needle.

3. A knitting machine needle having a pivot member comprising a Washer, and a casting Awhich engages and retains the shank ot' the needle, occupies-an opening in the washer, and laps :i portion of said washer.

4. A knitting;- machine needle haringT a pivot nieniher compi'iaing,Y a washer, and a casting which engages and retains the shank of the needle, occupies an opening in (he washer and overlaps the latter en each sido.

5. A knitting machine needle haring a pivot inemher with :1 casting which enrelops the shank of the needle, said. shank projectingr in both directions from the periphery of the casting.

G. A knitting machine needle haring a pivot member comprisingr a washer, and a casting e1'1gaging said washer and enveloping the shank of the needle.

7. A knitting machine needle having a pivot member comprising a washer and a casting which envelops the shank of the needle, occupies an opening in the washer, and laps a portion of said washer.

8. A knitting niachineneedle having' a pivot member comprising a washer, and a castingI which enifeleps the shank of the needle, occupies an opening .in the washer and overlaps the latter on each side.

ln testimony whereof, l have signed my name to this specification, in the presence of two subscribing witnesses.

LOUIS N. l?. lVIL'LlAIVlQ..

Witnesses:

KATE A. BEADLE, HAMIL'roN D. TURN nn. 

